\documentclass[a4paper]{sig-alternate}
\usepackage{times,amsmath,epsfig,amssymb}
\usepackage{delarray}
\usepackage{boxedminipage}
\usepackage{multirow}
\usepackage{hhline}
\usepackage{ulem}
\usepackage{dcolumn}
\usepackage{caption,cite}
%\usepackage{multicol}
\usepackage{floatflt,epsfig}
\usepackage{array}
\usepackage{subfigure}
\usepackage{subfigure,graphicx}
\usepackage{pifont}
%\pagestyle{plain}
\usepackage{mathptmx}
\makeatother
%
%\makeatletter
%\newcommand{\ps@refheading}{%
%\renewcommand{\@oddhead}{\footnotesize\rightmark\hfil}%
%\renewcommand{\@evenhead}{}%
%\renewcommand{\@oddfoot}{}%
%\renewcommand{\@evenfoot}{}}
%
\usepackage{verbatim}   % for \comment environment
\pdfpagewidth=8.5in
\pdfpageheight=11in


\font\elvbf  = cmbx10 scaled 1100
%\marginparsep 0in
%\marginparwidth 0in
%\topmargin -0.05in
\headheight 0in
%\headsep 0in
%\footskip 0.3in
\textheight 9.7in
\textfloatsep 0.1in
\floatsep 0.1in
\columnsep 0.25in
\parskip 0.2ex
\setlength{\parindent}{1pc}




%\newcommand{\scaption}[1]{\renewcommand{\baselinestretch}{0.94} \centerline{\begin{minipage}{3.0in}  \caption{\protect \small #1} \end{minipage}}}
%\newcommand{\dcaption}[1]{\renewcommand{\baselinestretch}{0.94} \centerline{\begin{minipage}{6.4in} \caption{\protect \small #1} \end{minipage}}}



%\baselineskip 4ex
\sloppy
\raggedbottom
\renewcommand{\dbltextfloatsep}{0.2in}
\renewcommand{\dblfloatsep}{0.2in}
%\renewcommand{\baselinestretch}{1.5}  %baseline
%\renewcommand{\arraystretch}{0.98}  %baseline
%\renewcommand{\baselinestretch}{1.45}  %baseline
%\renewcommand{\arraystretch}{1}
\renewcommand{\textfraction}{0}
\renewcommand{\topfraction}{0.8}
\renewcommand{\floatpagefraction}{0.9}
\setcounter{dbltopnumber}{2}
\setcounter{topnumber}{2}

\newcommand{\fixme}[1]{{\Large FIXME:} {\bf #1}}
\newcommand{\todo}[1]{{\bf TODO: \uline{#1}}\\}
\newcommand{\note}[1]{{\bf Note:} \{\uline{#1}\}\\}
\def\eg{{\em e.g.}, }
\def\etal{{\em et al.} }
\def\ie{{\em i.e.}, }
\normalem

%\let\oldthebibliography=\thebibliography
%  \let\endoldthebibliography=\endthebibliography
%  \renewenvironment{thebibliography}[1]{%
%    \begin{oldthebibliography}{#1}%
      %\setlength{\parskip}{0ex}%
%      \setlength{\itemsep}{0.6ex}%
%  }%
%  {%
%    \end{oldthebibliography}%
%  }
